/* reset */
html,
body,
div,
span,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
address,
big,
cite,
code,
del,
em,
img,
ins,
kbd,
small,
strong,
sub,
sup,
b,
u,
i,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
footer,
header,
hgroup,
menu,
nav,
section,
summary,
time,
mark,
audio,
video,
input {
  margin: 0;
  padding: 0;
  border: none;
  outline: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
html,
body {
  -webkit-user-drag: none;
  -webkit-text-size-adjust: 100%;
}
a,
a:hover {
  text-decoration: none;
}
input {
  -webkit-user-modify: read-write-plaintext-only;
}
a,
input,
button,
textarea,
fieldset,
ul,
span,
i {
  -webkit-tap-highlight-color: rgba(255, 255, 255, 0);
}
input[type='text'],
textarea,
fieldset {
  border: none;
  outline: none;
}
textarea {
  overflow: auto;
  resize: none;
}
body,
h1,
h2,
h3,
h4,
h5,
h6,
input[type='text'],
textarea {
  font-family: "Helvetica Neue", Helvetica, STHeiTi, sans-serif;
}
html,
body,
form,
fieldset,
p,
div,
h1,
h2,
h3,
h4,
h5,
h6 {
  -webkit-text-size-adjust: none;
}
a,
img {
  -webkit-touch-callout: none;
}
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}
ol,
ul,
ol li,
ul li {
  list-style: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
/* function */
.f-cb:before,
.f-cb:after {
  content: '';
  display: table;
}
.f-cb:after {
  clear: both;
}
.f-ib {
  display: inline-block;
}
.f-dn {
  display: none;
}
.f-wsn {
  white-space: nowrap;
  word-wrap: normal;
}
.f-toe {
  white-space: nowrap;
  word-wrap: normal;
  overflow: hidden;
  text-overflow: ellipsis;
}
.f-mtoe {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.f-wwb {
  white-space: normal;
  word-wrap: break-word;
  word-break: break-all;
}
/* model */
.mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  z-index: 900;
  display: none;
}
